Isn't It Too Difficult for a Wanted Criminal in the Galaxy to Become a Good Person?

The top killer of the "organization" and an S-class wanted criminal of the pan-galactic regime, after becoming a mecha cram school coach incognito, he was actually confessed to by a student who came to his door! Yes, she is a beauty. Fall in love, get married, have children, and live life like an ordinary person... Chen Guang had even thought about how he would spend his old age sitting in an electric rocking chair decades later, but then he discovered that his wife's career seemed very different from the "ordinary" he imagined!